Improvement in wind-wheels



H. .I. BRIMHALLyIr.

Wind Mills.

Patented Aug my ill M ATTORNEYS.

NPETERS. PHOTO-LITHOGHAPHER. WASMMQTON. D c.

UNITED STATES PATENT ()FFIGE.

HORACE J. BRIMHALL, JR., OF MILLINGTON, ILLINOIS, ASSIGNOR TO HIM- SELFAND SAMUEL E. FOSTER, OF SAME PLACE.

IMPROVEMENT IN WIND-WHEELS.

Specification forming part of Letters Patent N 166,744, dated August 17,1875 application filed July 24, 1875.

To all whom it may concern:

Be it known that I, HORACE J. BRIMHALL, J r., of Millington, Kendallcounty, Illinois, have invented a new and Improved Windmill, of whichthe following is a specification:

My invention consists of fans shaped like the arc of a circle, andpivoted at the middle of the top and bottom to horizontal armsprojecting from the sh aft, so that they may swing into radial, ornearly radial, positions to take the wind, and into a circle to close,so that the wheel will not be turned by the wind, and the buckets areconnected to a slider on the shaft, which is moved by a lever to openand close the buckets for starting and stopping the machine.

Figure l is a side elevation, and Fig. 2 is a horizontal section, of themachine.

Similar letters of reference indicate corresponding parts. 7 i

A represents the fans, which are pivoted, by means of end pieces B, tothe arms 0 of the vertical shaft D, so as to swing freely into thecircle represented by the full lines in Fig. 2, or into positionsindicated by the dotted lines E, being, in the latter case, in thecondition for taking the wind, and in the former condition being so thatthe wind will not turn it. The fans are connected by rods F With aslider, G, on the shaft, which is worked by a lever, H, to open andclose them, and to regulate the power of the wind on the wheel byopening the fans more or less.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patent l. Curved fans A, pivoted to arms 0 of a shaft, D, toopen and close in the manner described.

2. The combination of a slider, G, and lever H with curved fans A,pivoted to the arms of the wheel, as described.

- HORACE J. BRIMHALL, JR.

Witnesses:

GEORGE G. BIDDULPH, J OHN McMATH.

